Hypoglossal Nerve Implants for Sleep Apnoea
Understanding Hypoglossal Nerve Implants
Hypoglossal nerve implants are medically implanted devices designed to reduce airway collapse during sleep. They work by gently stimulating the hypoglossal nerve — the nerve that controls tongue movement — to keep the airway open with each breath.
Unlike CPAP machines, which rely on air pressure, implant systems work naturally with the body’s own muscle activity. They are silent, mask-free and operate automatically during sleep.
These implants are typically considered for people with:
- Moderate to severe obstructive sleep apnoea
- Difficulty tolerating CPAP
- Airway collapse patterns suitable for stimulation technology
The two devices currently available in the UK are:
- Inspire Upper Airway Stimulation system
- Genio Nyxoah nerve stimulation system
Who is Implant Therapy Is Suitable For?
Not every patient with sleep apnoea will benefit from an implant. Suitability depends on several key factors:
Diagnosis and severity
- Moderate to severe obstructive sleep apnoea, confirmed by sleep study.
Airway anatomy
- Specific collapse pattern — typically where the tongue or soft palate contributes to obstruction.
- Implant therapy is not suitable for patients with complete concentric collapse of the soft palate.
CPAP intolerance
- Difficulty using CPAP due to discomfort, claustrophobia, mask fit issues or inability to maintain long-term adherence.
General health
- Ability to attend follow-up appointments for device programming and monitoring.
Lifestyle & personal preference
- Patients wanting a solution that is discreet, quiet and requires minimal nightly setup.
Each candidate undergoes a structured clinical evaluation to confirm implant suitability.
How We Assess for Implant Treatment
Assessment includes a combination of airway evaluation, clinical examination and diagnostic testing.
Airway examination
A full ENT assessment of the nose, throat and tongue base helps identify structural contributors to airway collapse.
Sleep study
Confirms diagnosis, measures severity and provides baseline data to determine whether implant therapy is appropriate.
Drug-Induced Sleep Endoscopy (DISE)
DISE is a crucial step in implant assessment.
It allows Mr Ryan Cheong to observe the airway during sleep-like conditions, showing exactly where and how the airway collapses.
DISE identifies whether the collapse pattern is compatible with hypoglossal nerve stimulation.
Treatment planning
If the patient is a suitable candidate, Mr Cheong will discuss the implant options — Inspire or Genio Nyxoah — including:
- Device differences
- Activation timeline
- Follow-up programming
- Expected results
- Risks and recovery
Treatment Options: Inspire & Genio Nyxoah Implants
Inspire Upper Airway Stimulation
The Inspire system includes:
- A small pulse generator placed in the chest
- A sensing lead that monitors breathing
- A stimulation lead connected to the hypoglossal nerve
As you breathe in, the device activates the tongue muscles to prevent collapse. It is switched on at night via a handheld remote.
Genio Nyxoah Implant
The Genio system is fully implanted under the chin with no chest component. It uses bilateral nerve stimulation and is activated through an external patch worn under the chin.
This device appeals to patients who prefer a single-implant approach with less internal hardware.
The procedure
- Minimal incisions
- Light activity recovery within days
Activation & follow-up
- Device activation usually occurs 4-8 weeks after surgery
- Multiple programming sessions help optimise settings
- Patients often begin to notice improvements within the first few weeks of active therapy
Expected results
Many suitable patients experience:
- Reduced apnoea events
- Quieter sleep
- Improved daytime energy
- Better quality of life
- High long-term adherence compared to CPAP
Results vary depending on airway anatomy and collapse pattern — which is why DISE-directed assessment is essential.
Internal link:
→ View Sleep Apnoea Treatment Options
Mr Cheong’s Expertise with Hypoglossal Nerve Implants
Mr Ryan Cheong is one of the UK’s most experienced surgeons in hypoglossal nerve stimulation.
He performed:
- The first Genio Nyxoah implant in the UK
- The first female Inspire implant in the UK
These achievements reflect his leadership in developing new pathways for patients who cannot tolerate CPAP.
He is heavily involved in national discussions around expanding access to implant therapy and contributes to training programmes for other surgeons through ENT-UK and international sleep surgery societies.
His work in implant surgery has been widely covered by:
- BBC
- Sky News
- The Guardian
- The Times
- The Independent
- Daily Mail
- Metro
- The Mirror
Frequently Asked Questions
Is hypoglossal nerve stimulation safe?
Does the implant hurt when it activates?
Will insurance or self-pay packages cover the implant?
How long does the battery last?
Can the implant be removed?
Take the Next Step Towards Better Sleep
Schedule a consultation with Mr Ryan Cheong to understand your symptoms and explore appropriate treatment options.